Letter | Published:

X-ray outburst from the direction of the galactic centre

Nature volume 257, pages 291293 (25 September 1975) | Download Citation

Subjects

Abstract

WHEN the Uhuru satellite examined the X-ray emission from the region of the galactic centre in 1971 an extended region of emission centred on the radio source Sgr A and about 2° in extent was observed1. We report here details of a transient point X-ray source, A1742–28, which has been observed at the centre of this region by the Ariel V rotation modulation collimator (RMC) experiment. Its rise to a peak and subsequent decline by a factor of two over 12 d were monitored. The position was found to be α = 17 h 42 min 26.0 ± 4.8 s, δ = −28° 59.8 ± 1.2′ (1950.0 coordinates, 90% confidence limits).

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

References

  1. 1.

    , , , , and , Astrophys. J. Lett., 169, L99–L103 (1971).

  2. 2.

    , Mon. Not. R. astr. Soc., 147, 387–403 (1970).

  3. 3.

    , Nature phys. Sci., 246, 90–92 (1973).

  4. 4.

    , , , , and , Nature, 244, 349 (1973).

  5. 5.

    , , , and , Astrophys. J. Lett., 169, L93–L97 (1971).

  6. 6.

    , et al., Mon. Not. R. astr. Soc., 169, 7–23 (1974).

  7. 7.

    , , , and , Nature, 254, 577–578 (1975).

  8. 8.

    , , , , and , IAU Circ. No. 2774 (1975).

  9. 9.

    , and , Proc. 8th ESLAB Symp., SP–105 (ESRO, Paris, 1974).

  10. 10.

    , Proc. 8th ESLAB Symp., SP–105 (ESRO, Paris, 1974).

Download references

Author information

Affiliations

  1. Department of Space Research, University of Birmingham, Birmingham, UK

    • C. J. EYLES
    • , G. K. SKINNER
    •  & A. P. WILLMORE
  2. Mullard Space Science Laboratory, Department of Physics, University College London, UK

    • F. D. ROSENBERG

Authors

  1. Search for C. J. EYLES in:

  2. Search for G. K. SKINNER in:

  3. Search for A. P. WILLMORE in:

  4. Search for F. D. ROSENBERG in:

About this article

Publication history

Received

Accepted

Published

DOI

https://doi.org/10.1038/257291a0

Further reading

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.